title: Proficiency testing in immunohaematology in Ontario, Canada, 1977-1979.
abstract: An analysis of the results of a compulsory proficiency testing programme in immunohaematology is presented. Error rates have been calculated for the determination of ABO and Rh(D) groups, the direct antiglobulin test and antibody detection according to defined criteria. The introduction of proficiency testing has been associated with alterations in error rates for some determinations. An educational programme introduced for laboratories with poor performance has proved effective in improving their results in the proficiency testing programme.
mesh_terms: D000017:ABO Blood-Group System; D000906:Antibodies; D001789:Blood Group Antigens; D001788:Blood Grouping and Crossmatching; D003625:Data Collection; D006801:Humans; D007753:Laboratories / Q000592:standards*; D012015:Reference Standards; D012204:Rh-Hr Blood-Group System
chemical_list: D000017:ABO Blood-Group System; D000906:Antibodies; D001789:Blood Group Antigens; D012204:Rh-Hr Blood-Group System